This product is TOP! I received relatively quickly enough I think. very secure no worries at this level there. The product is great. My imperfections of the face, are less and less visible, and it's only after one month of daily use. I use it for 6 months now. & I've even bought a new bottle of 200ml. I recommend this product. For those who wish to have any other opinion, method of use and demo I board Youtube. There has enormously video demonstration.